Jiayang's answer to Janice Lai's Secondary 4 A Maths question.

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Jiayang
Jiayang's answer
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May Thu Lwin
May Thu Lwin
6 years ago
just to add on, i think the answer for question 6ii) should be -14 and 20 , because the coefficient of x^2 is 2 so multiply the general eqn by 2(: